420565464 has 48 divisors (see below), whose sum is σ = 1242582120. Its totient is φ = 127443840.

The previous prime is 420565459. The next prime is 420565471. The reversal of 420565464 is 464565024.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 264717 + ... + 266300.

Almost surely, 2^420565464 is an apocalyptic number.

420565464 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

420565464 is an abundant number, since it is smaller than the sum of its proper divisors (822016656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420565464 is a wasteful number, since it uses less digits than its factorization.

420565464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531040 (or 531033 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The square root of 420565464 is about 20507.6928005078. The cubic root of 420565464 is about 749.2231743336.

The spelling of 420565464 in words is "four hundred twenty million, five hundred sixty-five thousand, four hundred sixty-four".